Now rapidly growing genomic studies provide us information for at least 10 species that have both the monomeric and dimeric NADP-IDHs out of 50 different bacterial species containing monomeric NADP-dependent IDHs.Now rapidly growing genomic studies provide us information for at least 10 species that have both the monomeric and dimeric NADP-IDHs out of 50 different bacterial species containing monomeric NADP-dependent IDHs.